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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_PUBLIC_COMMON_SERVICE_WORKER_SERVICE_WORKER_UTILS_H_
#define THIRD_PARTY_BLINK_PUBLIC_COMMON_SERVICE_WORKER_SERVICE_WORKER_UTILS_H_
#include "third_party/blink/public/common/common_export.h"
namespace blink {
// Specifies strategy to generate V8 eager code cache when a script is stored
// into CacheStorage by a service worker. Eager code cache is more exhaustive
// code cache and generated by specifing v8::ScriptCompiler::kEagerCompile.
// Refer to https://crbug.com/768705 for more details.
//
// The default strategy is |kDuringInstallEvent|.
//
// IMPORTANT NOTE: We have some other heuristics/mechanisms to generate
// (non eager) code cache outside service worker. This does NOT affect other
// code caching mechanisms.
enum class EagerCodeCacheStrategy {
// Never generate eager code cache.
kDontGenerate,
// Generate eager code cache when Cache#put() is called in install event
// handlers. The promise of Cache#put() is resolved after the code cache is
// generated. Don't generate eager code cache outside install event handlers.
kDuringInstallEvent,
// This specifies the same behavior as |kDuringInstallEvent| but also
// schedules an idle task to generate eager code cache if Cache#put()
// is called outside install event handlers (e.g. fetch event handlers).
// The promise of Cache#put() doesn't wait for cache generation when put()
// is called outside install event handlers.
kOnIdleTask,
};
BLINK_COMMON_EXPORT extern const char kServiceWorkerEagerCodeCacheStrategy[];
class ServiceWorkerUtils {
public:
// Whether the new service worker glue for NetworkService is enabled (i.e.,
// the NetworkService or ServiceWorkerServicification feature is enabled).
// TODO(crbug.com/715640): Remove this after non-NetS13nSW is removed.
static bool BLINK_COMMON_EXPORT IsServicificationEnabled();
static bool BLINK_COMMON_EXPORT IsImportedScriptUpdateCheckEnabled();
static EagerCodeCacheStrategy BLINK_COMMON_EXPORT GetEagerCodeCacheStrategy();
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_PUBLIC_COMMON_SERVICE_WORKER_SERVICE_WORKER_UTILS_H_
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